When comparing the generators and sound levels the Honda EU3000IS clearly stands out as the quietest generator that can run an RV air conditioner!The Honda EU3000I "Handy" is a completely different and nosier generator.
I own both the Honda 2K and 3K-IS and can say the 3k is noticeably quieter than the 2K especially under load but for pickup camper camping the 2K makes more sense unless your toting a trailer behind or have a hitch mount on the front that will hold the 3K gen set.I carried my Honda 2K just in the back door of my Lance camper then took it out when I got where I was going.